Yeah. I did free air with 10hz test tone and had it MOVING. I was too chicken to get it to its max, but its insane how much excursion it has. Thats the cool thing about IB, your exursion limited, not heat limited by the vc's

Yeah. I did free air with 10hz test tone and had it MOVING. I was too chicken to get it to its max, but its insane how much excursion it has. Thats the cool thing about IB, your exursion limited, not heat limited by the vc's

I thought of everyway possible to make an IB work and I just dont have the ability. The only spot I could think of was to run an xlr to the back wall in a closet underneath the steps but with the drop ceiling I would still have to recreate the room to make sure the backwave didnt escape anywhere above the sheetrock and travel through the ceiling and cause issues. the back wall is also close to 25 feet from the screen. Ill be watching intently and helping anytime I can.

Yeah. My install is not going to be a walk in the park by any means, but thats what makes this hobby fun. Getting creative to make what you have work and overcoming reason and practicality with ubsurd and sometimes offensive solutions. Lol

My crawspace is tighter and more crap in the way lol. Kinda good though that I won't have to try to lift the drivers to get them in place. And mom already said no kids under the house. Too many black widows....

You got a good choice in drivers BTW.... I got plenty of LMS's and they aint goin nowhere, but I have a huge appreciation for the XXX 18, and I'd have used them in my dual opposed sealed jobbies but they just want to much space per cab sealed - much less a pair of them...

When Ricci brought his XXX and LMS to my house for a GTG - no question that they are very similar in SQ and output with the big guns goin to the XXX.....

You got a good choice in drivers BTW.... I got plenty of LMS's and they aint goin nowhere, but I have a huge appreciation for the XXX 18, and I'd have used them in my dual opposed sealed jobbies but they just want to much space per cab sealed - much less a pair of them...

When Ricci brought his XXX and LMS to my house for a GTG - no question that they are very similar in SQ and output with the big guns goin to the XXX.....

To be completely honest Keager I would probably try the 14000 run into these bridged. That's just me though... I'm crazy like that. These are a 4.2 ohm DCR so in an actual enclosure the lowest effective impedance that you will ever see is maybe 4.4-ish with all 4 wired mono. Most of the pass band will be well above that. These are power hungry.

Thought #2 is if the low impedance concerns you enough that you don't want to try the 14000 into it maybe sell or trade it for someone's 4 channel 10000?

I wouldn't worry too much about excursion predictions at maximum output either. I'd be very surprised if you manage to break one mechanically on accident. You have to over drive them hard enough to rip apart the triple joint which is not a delicate operation.

To be completely honest Keager I would probably try the 14000 run into these bridged. That's just me though... I'm crazy like that. These are a 4.2 ohm DCR so in an actual enclosure the lowest effective impedance that you will ever see is maybe 4.4-ish with all 4 wired mono. Most of the pass band will be well above that. These are power hungry.

Ricci,

Let me see if I got this First, parallel each VC so that each sub sees 1ohm. Then series two pairs of subs back up to 2 ohm. Then series both pair of subs up to 4 ohm? Make sense? Is that where you are going?

Will the Clone be able to handle that? If so, this will be the first I have seen someone extract the all 14K watts from the amp. At least that's the power according to the original manufacturers spec sheet. 3,500 watts per sub would be awesome, but I'm not sure it's worth it if he would potentially destroy his unwarranted amp.

Quote:

Originally Posted by Jason kiDD

I have a FP10000Q original that i would be willing to sell. 2 ohms stable but of course will cost a little more than your clone variant.. Or you can get two FP14000's..

Hummm, I'm wondering what a "little more" means...lol

Keager, this might be something seriously worth considering. If Jason was willing to take your FP14K and your XLS 5000 as an even trade I would jump all over it.

Given the original FP10000Q is good for 2,100 WPC @ 4ohm, you should be able to push your XXX's better than your current options.

I know you like opinions though, so my opinion is to get another Clone!

yep, bridged 4 ohm is somewhat of a no-no. I havent read specifically of an amp frying under these conditions, but taking it to 4 ohm bridged is essentially the same load as 2 ohm stereo which HAS fried a clone or two.

yep, bridged 4 ohm is somewhat of a no-no. I havent read specifically of an amp frying under these conditions, but taking it to 4 ohm bridged is essentially the same load as 2 ohm stereo which HAS fried a clone or two.

looks like my best bet for the amp situation is sell the fp14000 and the xls and purchase the 10000q. It will do 2100 w per channel at 4ohm and that would take the drivers right to xmax with a 10hz hpf. This would simplify things alot.

To be completely honest Keager I would probably try the 14000 run into these bridged. That's just me though... I'm crazy like that. These are a 4.2 ohm DCR so in an actual enclosure the lowest effective impedance that you will ever see is maybe 4.4-ish with all 4 wired mono. Most of the pass band will be well above that. These are power hungry.

I would absolutely roll with this as well... and I don't consider myself nearly as crazy as Ricci

Quote:

Originally Posted by Ricci

I wouldn't worry too much about excursion predictions at maximum output either.

+1 to this as well (although I don't think Ricci needs a +1 to have is comments validated ). I'm currently running an IB with 4 x AE IB15 drivers pushed by an EP2500. According to WinISD my cone excrusion should exceed Xmax by about 30mm at 15hz... I've clipped my EP2500 into them on Bass I Love You and haven't managed to break anything yet. Why? At the limits the suspension tightens up, BL goes down, etc. to help ensure that 58mm of excursion in my model never actually happens

Graphs attached - blue is mine with 10kW, yellow is 4 x RE XXX-18 in a 40kL with 10kW

I would absolutely roll with this as well... and I don't consider myself nearly as crazy as Ricci

+1 to this as well (although I don't think Ricci needs a +1 to have is comments validated ). I'm currently running an IB with 4 x AE IB15 drivers pushed by an EP2500. According to WinISD my cone excrusion should exceed Xmax by about 30mm at 15hz... I've clipped my EP2500 into them on Bass I Love You and haven't managed to break anything yet. Why? At the limits the suspension tightens up, BL goes down, etc. to help ensure that 58mm of excursion in my model never actually happens

Graphs attached - blue is mine with 10kW, yellow is 4 x RE XXX-18 in a 40kL with 10kW

Thanks for taking time to post this. Weighing different options now. I guess if I ran the clone in 2ohm stereo, and it failed, I have the xls as backup until I got it fixed. Hmmmm.

Thanks for taking time to post this. Weighing different options now. I guess if I ran the clone in 2ohm stereo, and it failed, I have the xls as backup until I got it fixed. Hmmmm.

Not a lot of threads catch my interest enough to post any longer but I'm rather excited to see how this one turns out A couple other options that may be worth consideration before dropping more $. Run the 14000 in stereo 8ohm and see what you get. That's probably a short term solution though as even though you'll get plenty of output you'll always know you could have more (even if it's only good for showing off lol). Run both amps each pushing a pair of XXX at 8ohm bridged (level matched).